Comparison of Agronomic Characters, Yield and Taste Flavor of Two Varieties of Green Cabbages at Different Harvest Periods

In order to explore the effects of different varieties and different harvest periods on the growth and quality of green cabbage, Jinpin 1 Xia and Jinpin Aijiao were selected as the experimental materials, and the planting was carried out in summer, autumn and winter respectively, and different harvesting periods were set: 20, 25, 30 and 35 days in summer, and 20, 30, 40 and 50 days in autumn and winter. The agronomic traits, yield, disease occurrence and flavor quality at each harvest period were investigated. The results showed that: In summer, Jinpin 1 Xia was without jointing and had strong disease resistance, green leaf color, green petiole color at harvest of 20-30 d, and high yield. The characters and yield of Jinpin 1 Xia were significantly better than those of Jinpin Aijiao in summer. Therefore, Jinpin 1 Xia should be selected for being planted in summer and the appropriate harvest period was 30 days. When planting in autumn and winter, Jinpin Aijiao was girded with green leaves and petioles and good flavor & quality. Therefore, Jinpin Aijiao were suitable for being planted in autumn and winter, and the appropriate harvest period was 40 days. No matter in summer or in autumn and winter, the flavor tasting scores of the two varieties decreased with the extension of harvest time. Generally, the green cabbages were harvested 20-25 d after sowing in summer, and 25-30 d after sowing in autumn and winter. At this time, the flavor quality was the best.